潍坊蓝精刚机械零部件制造有限公司 ，2017年创立于山东省潍坊市，是一家专注于摩托车、汽车活塞的出口型生产企业。
公司现有20余条铸造生产线，日生产活塞毛坯5万只，22条活塞加工专用数控机床，日生产活塞成品3万只。
蓝精刚多年来一直致力于新产品的研发，高薪聘请高级研发人才，配备先进的模具研发设备，如：数控加工中心，精雕机，万能铣床，万能磨机，线切割等设备，新产品开发周期，从接受客户的图纸或样件到交货时间不超过10个工作日。

Weifang Lanjinggang Mechanical Parts Manufacture was founded on 24th Oct,2017, which is located in Weicheng Development Zone ,Weifang City . It covers an area of 40000 square  meters, with construction area of  24000  square  meters .Currently we employs more than 300 people, of  which is more than 22 professional and technical staff 
    The company now has 14 piston production lines, with an annual output capacity of 6 million,  more than 95% products are for main machine match and for export sales.
With short R&D cycle of new products, advanced equipment , lean manufacturing, and  efficient after-sales service, we are able to fully meet thecustomer demand. JYJG's engineering expertise and state-of-the-art facilities have led to our being known for innovation and award-winning products and earned a reputation for excellence in quality and service.